Scratch a social democrat...

Andrea Ypsilanti (she has Greek forebears, I believe), head of the Hesse SPD, has reneged on a pre-election promise not to co-operate with the extreme left Die Linke: "It could happen that I cannot stick to an election promise," she said. "Believe me, this is not easy for me." Source. The respectable parties in Germany have previously had a cordon sanitaire to exclude Die Linke, a combination of unrepentant Communists and sundry other flat earthers.

What she could do is co-operate with the eminently respectable, if rather less insurrectionist CDU, which would deliver 84 out of 110 seats in the Hesse assembly.

Minor footnote - when the CDU get together with the Free Democrats and the, bleurgh, Greens, it is termed a 'Jamaika-Koalition', as like Kingston's equivalent of Ol' Glory it has yellow, black and green. Fascinating, eh? By the same token, I suppose a Tory / Lib Dem coalition could be a Swedish coalition. As well as an abomination in the sight of the Lord, naturally.